I didn't know this, but for the last five years the Royal Society of Biology has been running a flying ant survey in the UK. You just have to send a photo to them with you holding a sign giving the date and location of the flight. More information can be found on their website. www.rsb.org.uk/flyingantsurvey They've also produced a video for this years flights.
I found this recording of black ants walking all over a microphone. It's so weird to hear the sound of something so small as ants feet and mandibles on the microphone. http://www.theworldaccordingtosound.org/2016/04/17/34-ants.html
Here's an interesting story about an Amazonian frog that excretes special chemicals that imitate the chemical signals created by leaf cutter ants. This allows the frog to coexist with the ants and use their nests to help with the development of their eggs. http://phys.org/news/2016-10-amazonian-frog-ant-repellent.html
This is an interesting story on the demise of a leaf cutter ant colony at London's Natural History museum. I went there in August this year and the colony had already died out. https://www.theguardian.com/culture/2016/oct/19/museum-queen-died-notice-ant-colony-natural-history-london
A new species of long-toothed ant was recently discovered in the belly of a Little Devil poison from in Ecuador. The new ant species was named Lenomyrmex hoelldobleri after the renowned myrmecologist Bert Holldobler. http://phys.org/news/2016-10-belly-devil-rare-ant-species.html#nRlv